Honeywell Tradeline H1008A Installation Instructions Manual

APPLICATION
The H1008A,D Automatic Humidity Controls with
HumidiCalc+™ Software are duct mounted and provide
automatic, low voltage, electronic control of by-pass flow-
through, powered flow-through, steam and drum humidifi-
ers in central heating systems. The H1008D also controls
heat/energy recovery units and dehumidifiers. The
H1008A,D are designed to automatically adjust the
humidity level based on indoor temperature and humidity,
inferred or measured outdoor temperature and the setting
of the frost factor dial. The frost factor setting is used to
maintain a comfortable humidity level in the home while
reducing moisture condensation on inside windows. The
HumidiCalc+™ Software infers the outdoor temperature by
monitoring the equipment cycles and eliminates the need
for an outdoor temperature sensor when used on single-
stage gas or oil furnaces. With the use of the C7089H
Outdoor Temperature Sensor (purchased separately), the
H1008A,D also provide automatic humidity control in heat
pump and multi-stage systems.
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazard-
ous condition.
2. Check the ratings given in the instructions to make
sure the product is suitable for your application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
Use the following specifications for this installation:
Electrical Ratings:
Power Supply: 24 Vac, 60 Hz.
Humidifier Control Relay Contacts:
Inductive: 2A full load, 10A locked rotor.
Resistive: 2A.
Thermostat/Furnace Load: 11 mA maximum at 24 Vac.
CAUTION
Voltage Hazard.
Power supply can cause electrical shock.
Disconnect power supply before beginning
installation.
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Copyright © 1999 Honeywell Inc. • All Rights Reserved
Automatic Humidity Control
Location and Mounting
H1008A,D Automatic Humidity Control
IMPORTANT
Locate the control at least 12 in. (305 mm) upstream from
the humidifier (or dehumidifier/ventilator supply air) in the
return air duct where it can be exposed to the air stream of
the return air. See Fig. 1.
RETURN
AIR
6 in. (152 mm)
MINIMUM
RETURN AIR DUCT
Use the following procedure to mount the H1008A,D in the
return air duct:
1. Remove the cover by placing your thumb in the
bottom notch between the cover and the base and
pulling out and up. See Fig. 2.
X-XX UL
H1008A,D
INSTALLATION INSTRUCTIONS
Do not install H1008 on supply air. Temperatures
in excess of 120 ° F cause the control to go into
error mode. If mounting near an elbow area,
keep the control 6 in. (152 mm) upstream from
the elbow so that the humidity and temperature
sensor is exposed to the normal airflow (Fig.1).
ALTERNATE LOCATION
BEST
LOCATION
Fig. 1. Select duct location for control.
Fig. 2. Remove cover from base.
RETURN
AIR
15 in. (381 mm)
MINIMUM
M12822
M12828
69-1185EF-2